42 entries under substantial topic. ×
| durable(adjective, strong, sound, tough, solid) | |
| solid(adjective, strong, sound, tough, heavy) | |
| sturdy(adjective, strong, sound, tough, solid) | |
| able(adjective, strong, sound, tough, solid) | |
| able-bodied(adjective, strong, sound, tough, solid) | |
| active(adjective, strong, sound, tough, solid) | |
| athletic(adjective, strong, sound, tough, solid) | |
| big(adjective, strong, sound, tough, solid) | |
| capable(adjective, strong, sound, tough, solid) | |
| enduring(adjective, strong, sound, tough, solid) | |
| energetic(adjective, strong, sound, tough, solid) | |
| fixed(verb, adjective, strong, sound, tough) | |
| forceful(adjective, strong, sound, tough, solid) | |
| forcible(adjective, strong, sound, tough, solid) | |
| hale(adjective, strong, sound, tough, solid) | |
| hard as nails(expression, adjective, idiom, strong, sound) | |
| hardy(adjective, strong, sound, tough, solid) | |
| hearty(adjective, strong, sound, tough, solid) | |
| heavy(adjective, strong, sound, tough, solid) | |
| heavy-duty(adjective, strong, sound, tough, solid) |
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| APA | Smart Define. (2015). reinforced thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/reinforced/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "reinforced thesaurus" https://smartdefine.org/reinforced/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, reinforced thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/reinforced/thesaurus/synonyms>. |
| MLA | Smart Define. "reinforced thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/reinforced/thesaurus/synonyms> |